//
// Created by mazaiting on 2024/4/27.
//

#include <bits/stdc++.h>

using namespace std;

void swap3(int *x, int *y) {
    int tmp = *x;
    *x = *y;
    *y = tmp;
}

int main() {
    int a = 1, b = 2;
    swap3(&a, &b);
    printf("a=%d,b=%d\n", a, b);
    return 0;
}

